Volcanic activity worldwide 27 Jul 2013: White Island, Ketoi, Santa María / Santiaguito, Fuego, Pop...
Saturday Jul 27, 2013 17:04 PM |
Current seismic recording from White Island (GeoNet)
Small explosion from Popocatepétl yesterday
Ketoi (Kurile Islands, Russia): (26 Jul) SVERT raised the alert level to yellow after a weak thermal anomaly has been detected on satellite data at the summit of the volcano. No other details about possible activity are currently known.
Santiaguito with a small explosion yesterday morning
White Island (New Zealand): (26 Jul) Following increased tremor including numerous earthquakes, and increased gas-steam emissions from the crater lake, the alert level of the volcano was raised to yellow again.
According to Brad Scott of GNS Science, the crater produced "audible jets of gas" and "broader expanding bubbles of dark lake sediments and debris" throwing material 20-30 meters into the air.
Veniaminof (Alaska Peninsula, USA): (26 Jul) From AVO's weekly activity update:
"Nearly continuous, gradually fluctuating volcanic tremor and occasional explosions have been observed in seismic data from Veniaminof Volcano throughout the past week. Elevated surface temperatures at the intracaldera cone also have been observed in satellite data throughout the past week. When viewing conditions permit, incandescence at the cone has been observed in night-time web camera views. Day time web camera views also showed that low-level ash and steam emissions have continued throughout the week. A pilot report from 8:00 AM AKDT July 25 described an ash plume to 200-300 feet above the erupting cone and dispersing 15 miles to the south and a "river of lava" flowing from the intracaldera cone.
... [read more]
Popocatépetl (Central Mexico): (26 Jul) The rate of small emissions of steam-gas and sometimes ash has risen to more than 3 per hour again, and CENAPRED recorded 150 minutes of low and high frequency tremor.
Santa María / Santiaguito (Guatemala): (26 Jul) No significant changes in activity have occurred. A moderate explosion was observed yesterday morning, producing an ash plume about 500 m high. Some avalanches occurred at the lava flows on the southern slope of the dome.
Fuego (Guatemala): (26 Jul) INSIVUMEH reports weak strombolian activity ejecting incandescent blocks to up to 100 m and producing small ash plumes about 200 m high, as well as continued lava effusion feeding a flow on the southern side of about 100 m length.
Volcanic activity worldwide 25 Jul 2013: Pacaya, Stromboli, Santa María / Santiaguito, Fuego, Popoc...
Thursday, Jul 25, 2013
Wednesday, Jul 24, 2013
Volcanic activity worldwide 23-24 Jul 2013: Popocatépetl, Merapi, Reventador, Turrialba, Tungurahua, Sakurajima
Wednesday, Jul 24, 2013
Tolbachik (Kamchatka): There are no signs of the eruption ending soon. Although an overall weakly decreasing trend is visible over the past months, tremor levels reported by KVERT remained stable during the past week and lava continues to be erupted form the southern fissure, feeding a vast flow field mainly SE of the volcano. ... [meer...]
Volcanic activity worldwide 22 Jul 2013: Santa María / Santiaguito, Pacaya, Fuego, Popocatépetl, M...
Monday, Jul 22, 2013
Sunday, Jul 21, 2013
Sakurajima (Kyushu, Japan): (21 Jul) The volcano continues to produce relatively frequent and strong ash-rich explosions, but activity has decreased a bit compared to previous days. During last night, it had long-lasting (up to 1-2 hours) phases of continuous ash emissions of various intensity, with dense plumes up to about 500 m height, but completely silent and with no visible incandescence. During other phases, it was emitting a small plume of vapour with some dilute ash. ... [meer...]